Everybody loves an upset, an underdog … and the NCAA Men’s Basketball Tournament offers them in spades, year after year, but never in its history has a 15th seed reached the Sweet Sixteen … till the flyin’ high FGCU Eagles showed up at the dance, and something tells me they’ll be plenty more bandwagon Florida Dunk Coast fans rooting for them Friday, when number 3 seed Florida gets welcomed to Dunk City …